公开(公告)号：US20130136548A1

公开(公告)日：2013-05-30

申请号：US13687834

申请日：2012-11-28

申请人： UNION TOOL CO.

发明人： Shoichi TAKAHASHI ,  Masanori KAKUDA

IPC分类号： B23C5/16

CPC分类号： B23C5/165 ,  B23C5/10 ,  B23C2210/0414 ,  B23C2226/27 ,  B23C2228/25 ,  Y10T407/1946 ,  Y10T407/1948

摘要： To provide a rotary cutting tool in which a satisfactory cut state in which burrs and uncut portions are absent is obtained, even when counterboring is applied to a composite honeycomb member. A first cutting-chip discharge groove (2) disposed from a tool tip towards a base-end side is formed on an outer periphery of a tool body (1); a plurality of second cutting-chip discharge grooves (3), provided along a spiral disposed from the tool tip towards the base-end side so as to intersect with the first cutting-chip discharge groove (2), are formed on an outer periphery section of the tool body (1) where the first cutting-chip discharge groove (2) is absent; and a base-end-side outer periphery cutting edge (4) is formed on an intersection ridge between a rake face of a second cutting-chip discharge groove (3), which faces a direction of tool rotation, and an outer peripheral surface of the tool body (1) or an outer peripheral relief face; wherein an end cutting edge (5) is provided at a tip section of the tool body (1); a tip-side outer periphery cutting edge (6) is formed on an intersection ridge between the rake face at a tip section of a first cutting-chip discharge groove (2) and an outer peripheral surface of the tip section of the tool body (1) or an outer periphery relief face (18); and the base-end-side outer periphery cutting edge (4) is provided further towards the tool base-end side than the tip-side outer periphery cutting edge (6).

摘要翻译： 为了提供一种旋转切削工具，即使在没有毛刺和未切割部分的情况下也能获得令人满意的切削状态，即使在复合蜂窝部件上施加相对位置。 在工具主体（1）的外周形成有从刀头朝向基端侧配置的第一切屑排出槽（2）。 多个第二切屑排出槽（3）沿着从工具尖端朝向基端侧的螺旋线设置成与第一切屑排出槽（2）相交，形成在外周 不存在第一切屑排出槽（2）的工具主体（1）的截面; 并且基端侧外周切削刃（4）形成在与工具旋转方向相对的第二切屑排出槽（3）的前刀面与外周面 工具主体（1）或外周边浮雕面; 其中端部切削刃（5）设置在所述工具主体（1）的尖端部分处; 尖端侧外周切削刃（6）形成在第一切屑排出槽（2）的前端部的前刀面与刀具末端部的外周面（ 1）或外周边浮雕面（18）; 并且基端侧外周切削刃（4）比前端侧外周切削刃（6）更靠近刀具基端侧。